128807715

素因数分解:

$3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{65551}}^1$

素因数の和:65690

約数の個数: 16

約数和(自身を含む): 207668736

約数和(自身を除く): 78861021

約数列:

[1, 3, 5, 15, 131, 393, 655, 1965, 65551, 196653, 327755, 983265, 8587181, 25761543, 42935905, 128807715]

約数ペア:

[(1, 128807715), (3, 42935905), (5, 25761543), (15, 8587181), (131, 983265), (393, 327755), (655, 196653), (1965, 65551)]